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Fixed examples for LPP in HEMS and Controlbox #213

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Merged
uhl merged 1 commit into from
Apr 13, 2026
Merged

Fixed examples for LPP in HEMS and Controlbox #213

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5 changes: 4 additions & 1 deletion examples/controlbox/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -199,10 +199,13 @@ func (h *controlbox) sendProductionLimit(entity spineapi.EntityRemoteInterface)

fmt.Println("Sending a production limit in 5s...")
time.AfterFunc(time.Second*5, func() {
// NOTE: Per the LPP spec, APPL (Active Power Limit) values for production
// must be <= 0. The eebus-go stack does not transform positive values to
// negative values, so the caller must provide the correct sign.
limit := ucapi.LoadLimit{
Duration: time.Hour*1 + time.Minute*2 + time.Second*3,
IsActive: true,
Value: 100,
Value: -100,
}

resultCB := func(msg model.ResultDataType) {
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9 changes: 6 additions & 3 deletions examples/hems/main.go
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Expand Up @@ -126,13 +126,16 @@ func (h *hems) run() {
_ = h.uccslpc.SetFailsafeConsumptionActivePowerLimit(4200, true)
_ = h.uccslpc.SetFailsafeDurationMinimum(2*time.Hour, true)

_ = h.uccslpp.SetProductionNominalMax(10000)
// NOTE: Per the LPP spec, APPL (Active Power Limit) values for production
// must be <= 0. The eebus-go stack does not transform positive values to
// negative values, so the caller must provide the correct sign.
_ = h.uccslpp.SetProductionNominalMax(-10000)
_ = h.uccslpp.SetProductionLimit(ucapi.LoadLimit{
Value: 10000,
Value: -10000,
IsChangeable: true,
IsActive: false,
})
_ = h.uccslpp.SetFailsafeProductionActivePowerLimit(4200, true)
_ = h.uccslpp.SetFailsafeProductionActivePowerLimit(-4200, true)
_ = h.uccslpp.SetFailsafeDurationMinimum(2*time.Hour, true)

if len(remoteSki) == 0 {
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2 changes: 0 additions & 2 deletions usecases/api/eg_lpc.go
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Expand Up @@ -65,8 +65,6 @@ type EgLPCInterface interface {
// parameters:
// - entity: the entity of the e.g. EVSE
//
// return values:
// - negative values are used for production
FailsafeDurationMinimum(entity spineapi.EntityRemoteInterface) (time.Duration, error)

// send new Failsafe Duration Minimum
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4 changes: 1 addition & 3 deletions usecases/api/eg_lpp.go
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Expand Up @@ -49,7 +49,7 @@ type EgLPPInterface interface {
// - entity: the entity of the e.g. EVSE
//
// return values:
// - positive values are used for production
// - negative values or 0 are used for production
FailsafeProductionActivePowerLimit(entity spineapi.EntityRemoteInterface) (float64, error)

// send new Failsafe Production Active Power Limit
Expand All @@ -65,8 +65,6 @@ type EgLPPInterface interface {
// parameters:
// - entity: the entity of the e.g. EVSE
//
// return values:
// - negative values are used for production
FailsafeDurationMinimum(entity spineapi.EntityRemoteInterface) (time.Duration, error)

// send new Failsafe Duration Minimum
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